Seems like we are still playing word games with each other so I will give it my best.
Issue #1
If you are going 85 mph and detector goes off with jammer will you have enough time to slow to say 55mph I say No. If you are going 70mph it may give enough time to slow to 55.

Issue #2
Yes I say a cop CAN issue a speeding ticket based on a visual speed estimate. No I haven't issued a speeding ticket on a visual estimate. Finally Yes I believe in NY I could issue a ticket based on a visual speed estimate and subsequent conviction after a trial based soley on a speed estimate.